1 Features

1• Six High-Efficiency Step-Down DC/DC Converter

Cores:

– Max Output Current 10 A

– Cores Bundled to a 6-Phase Converter

– Load Current Reporting

– Programmable Overcurrent Protection (OCP)

– Auto PWM/PFM and Forced-PWM Operations

and Automatic Low Power-Mode Setting

– Automatic Phase Adding/Shedding

– Remote Differential Feedback Voltage Sensing

– Output Voltage Ramp Control

– VOUT Range = 0.6 V to 1.67 V

• I2C-Compatible Interface which Supports Standard

(100 kHz), Fast (400 kHz), and High-Speed (3.4

MHz) Modes

• Four Selectable I2C Addresses

• Interrupt Function with Programmable Masking

• Output Short-Circuit and Input Overvoltage

Protection (OVP)

• Spread Spectrum and Phase Control for EMI

Reduction

• Overtemperature Protection (OTP)

• Undervoltage Lock-out (UVLO)

2 Applications

• Smart Phones, eBooks and Tablets

• GSM, GPRS, EDGE, LTE, CDMA and WCDMA

Handsets

• Gaming Devices

3 Description

The LP8754 is designed to meet the power

management requirements of the latest applications

processors in mobile phones and similar portable

applications. The device contains six step-down

DC/DC converter cores, which are bundled together

in a 6-phase buck converter. The device is fully

controlled by a Dynamic Voltage Scaling (DVS) interface or an I2C-compatible serial interface.

The automatic PWM/PFM operation together with the automatic phase adding/shedding maximizes

efficiency over a wide output current range. The

LP8754 supports remote differential voltage sensing

to compensate IR drop between the regulator output

and the point-of-load thus improving the accuracy of

the output voltage.

The protection features include short-circuit

protection, current limits, input OVP, UVLO,

temperature warning, and shutdown functions.

Several error flags are provided for status information

of the IC. In addition, I2C read-back includes total

load current and load current for each buck core: The

LP8754 has the ability to sense current being delivered to the load without the addition of current

sense resistors. During start-up, the device controls

the output voltage slew rate to minimize overshoot

and the inrush current.